| 摘要 |
SOLID NON-HYGROSCOPIC TRIALKYLAMINE OXIDES Solid non-hydroscopic trialkylamine oxide dihydrates are made by reacting a trialkylamine with aqueous hydrogen peroxide in an inert solvent selected from organic esters (e.g., ethyl acetate), aliphatic hydrocarbons (e g., heptane), cycloaliphatic hydrocarbons (e.g., cyclohexane), aromatic hydrocarbons (e.g., toluene), aromatic halohydrocarbons (e.g., chlorobenzene), dimethylformamide, dimethylacetamide and dimethylsulfoxide, in an amount that maintains a fluid stirrable reaction mixture. Upon completion of the reaction, water content is adjusted, if necessary, to give a 2/1 mole ratio of water to tert-amine oxide and the product trialkylamine oxide dihydrate is recovered by crystallization from the solvent or by distilling off the solvent to leave the product as a residual material or a flaked or extruded product.
|
